Another entry in the "I'm sure this already exists somewhere" files...
There are all sorts of sports bars out there, where folks can get together with other fans and watch sporting events live.
Why not TV Diners? (Get it? It's like TV Dinner, but not. I slay me.) You could get together with other fans and watch House, or CSI Miami, or American Idol, or what have you.
Instead of the lonely activity where you lie mindlessly on the couch, you could watch your favorite shows with a group of other people, talking and laughing while chowing down on fries and chicken strips - or hey, why not a salad?
There could be contests and trivia during the commercial breaks, and all-night events during marathons. Character look-alike contests! You could cancel your cable tv service and only watch TV while at the diner. You'd watch less TV, and when you did it would be a social activity.
There could be different segments of the diner - Poppy stuff like American Idol in this corner, while The Discovery Channel is running in another corner. A nostalgia corner where TV Land is running old re-runs of 90210. I'd go!